Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 39.4, Problem 3CC
MAKE CONNECTIONS How might a learned behavior contribute to
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Make Connections Describe three more examples ofmutualisms. (See Figure 27.19, Figure 38.4, and Concept 41.4.)
MAKE CONNECTIONS If a population stopped reproducing sexually (but still reproduced asexually), how wouldits genetic variation be affected over time? Explain.(See Concept 13.4.)
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Directions: With the knowledge you gained about the mechanism of evolution,
answer the following questions using illustrations/drawing. Write your
answers on a separate sheet of paper.
1. Give an example of natural selection that happens in your locality.
2. Where do you think genetic drift will likely happen more quickly on an
island or the mainland?
3. How do pollinators contribute to the gene flow?
Chapter 39 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 39.1 - Contrast the role of Ca2+ in the contraction of a...Ch. 39.1 - WHAT IF? Why are the muscles of an animal that has...Ch. 39.1 - Prob. 3CCCh. 39.2 - Prob. 1CCCh. 39.2 - Prob. 2CCCh. 39.2 - Prob. 3CCCh. 39.3 - Prob. 1CCCh. 39.3 - MAKE CONNECTIONS How is the lunar-linked rhythm of...Ch. 39.4 - How might associative learning explain why...Ch. 39.4 - Prob. 2CC
Ch. 39.4 - MAKE CONNECTIONS How might a learned behavior...Ch. 39.5 - Prob. 1CCCh. 39.5 - MAKE CONNECTIONS Balancing selection can maintain...Ch. 39.6 - Prob. 1CCCh. 39.6 - Prob. 2CCCh. 39 - During the contraction of a vertebrate skeletal...Ch. 39 - Prob. 2TYUCh. 39 - According to Hamiltons rule, A. natural selection...Ch. 39 - The binding of calcium to the troponin complex A....Ch. 39 - Curare, a substance that blocks the acetylcholine...Ch. 39 - Prob. 6TYUCh. 39 - Prob. 7TYUCh. 39 - SCIENTIFIC INQUIRY Propose a hypothesis to explain...Ch. 39 - SCIENTIFIC INQUIRY Scientists studying scrub jays...Ch. 39 - Prob. 10TYUCh. 39 - FOCUS ON INFORMATION Learning is defined as a...Ch. 39 - SYNTHESIZE YOUR KNOWLEDGE Acorn woodpeckers...
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- How can researchers test the hypothesis that clinal variation among populations of a particular species has a genetic basis?arrow_forwardMAKE CONNECTIONS Balancing selection can maintain variation at a locus (see Concept 23.4). Based on theforaging experiments described in this chapter, devise asimple hypothesis to explain the presence of both for Rand forsalleles in natural fly populationsarrow_forwardEvolution in Humans 1) explain what evolutionary mechanisms are involved in creating variation in populations 2) define homology and analogy and discuss examples of eacharrow_forward
- Red queen hypothesesarrow_forwardQ1) We discussed the context in which evolution would likely favor the evolution of learning. Please describe how the predictability of cues (ie, the information value of cues) within ones own life (high or low) and the predictability of cues over many generations (high or low) would favor, or disfavor, the evolution of learning. You should briefly describe how the predictability of cues affects the evolution of learning, and, justify why they have the described effects on the evolution of learning. 2) Animals do not typically respond to the risks associated with foraging; they must obtain food regardless of risk. TRUE OR FALSE? 3) Many non-human animals, such as birds, exhibit a form of social learning called cultural transmission. TRUE OR FALSE?arrow_forwardPlease help! Question: Summarize how new species can arise by explaining the differences between allopatric and sympatric isolation. Give a real example of when allopatric speciation has been observed and when sympatric speciation has been observed.arrow_forward
- Apply Evolutionary Thinking How do human activities (such as destruction of natural habitats, diversion of rivers, and the construction of buildings) influence the chances that new species of plants and animals will evolve in the future? Frame your answer in terms of the geographical and genetic factors that foster speciation.arrow_forwardINTERPRET DATA Which of the primates in Figure 18-18 is the most distantly related to humans? Explain your answer. Figure 18-18 Differences in DNA nucleotide sequences as evidence of evolutionary relationships Comparing the same gene in different organisms provides a window into evolution. Here the differences in the non-protein-coding region of the -globin gene are compared between humans and other primates. Evolutionary biologists are rapidly expanding such studies from comparing one or several genes to comparing entire genomes.arrow_forwardQ8:Which of the evolutionary trees below show similar evolutionary relationships between species? Pick all that apply X X Z Y Z X Y X Zarrow_forward
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